[media] tvp514x: use the control framework

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

diff --git a/drivers/media/video/tvp514x.c b/drivers/media/video/tvp514x.c
index 45bcf0358a1d20a002f0a82ef964a7c85663d42a..9b3e828b0775fc6e4bd1f1b3077128d49f40545f 100644 (file)
--- a/drivers/media/video/tvp514x.c
+++ b/drivers/media/video/tvp514x.c
@@ -37,6 +37,7 @@
 #include <media/v4l2-common.h>
 #include <media/v4l2-mediabus.h>
 #include <media/v4l2-chip-ident.h>
+#include <media/v4l2-ctrls.h>
 #include <media/tvp514x.h>
 
 #include "tvp514x_regs.h"
@@ -97,6 +98,7 @@ static int tvp514x_s_stream(struct v4l2_subdev *sd, int enable);
  */
 struct tvp514x_decoder {
        struct v4l2_subdev sd;
+       struct v4l2_ctrl_handler hdl;
        struct tvp514x_reg tvp514x_regs[ARRAY_SIZE(tvp514x_reg_list_default)];
        const struct tvp514x_platform_data *pdata;
 
@@ -238,6 +240,11 @@ static inline struct tvp514x_decoder *to_decoder(struct v4l2_subdev *sd)
        return container_of(sd, struct tvp514x_decoder, sd);
 }
 
+static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl)
+{
+       return &container_of(ctrl->handler, struct tvp514x_decoder, hdl)->sd;
+}
+
 
 /**
  * tvp514x_read_reg() - Read a value from a register in an TVP5146/47.
@@ -718,214 +725,55 @@ static int tvp514x_s_routing(struct v4l2_subdev *sd,
        return 0;
 }
 
-/**
- * tvp514x_queryctrl() - V4L2 decoder interface handler for queryctrl
- * @sd: pointer to standard V4L2 sub-device structure
- * @qctrl: standard V4L2 v4l2_queryctrl structure
- *
- * If the requested control is supported, returns the control information.
- * Otherwise, returns -EINVAL if the control is not supported.
- */
-static int
-tvp514x_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qctrl)
-{
-       int err = -EINVAL;
-
-       if (qctrl == NULL)
-               return err;
-
-       switch (qctrl->id) {
-       case V4L2_CID_BRIGHTNESS:
-               /* Brightness supported is (0-255), */
-               err = v4l2_ctrl_query_fill(qctrl, 0, 255, 1, 128);
-               break;
-       case V4L2_CID_CONTRAST:
-       case V4L2_CID_SATURATION:
-               /**
-                * Saturation and Contrast supported is -
-                *      Contrast: 0 - 255 (Default - 128)
-                *      Saturation: 0 - 255 (Default - 128)
-                */
-               err = v4l2_ctrl_query_fill(qctrl, 0, 255, 1, 128);
-               break;
-       case V4L2_CID_HUE:
-               /* Hue Supported is -
-                *      Hue - -180 - +180 (Default - 0, Step - +180)
-                */
-               err = v4l2_ctrl_query_fill(qctrl, -180, 180, 180, 0);
-               break;
-       case V4L2_CID_AUTOGAIN:
-               /**
-                * Auto Gain supported is -
-                *      0 - 1 (Default - 1)
-                */
-               err = v4l2_ctrl_query_fill(qctrl, 0, 1, 1, 1);
-               break;
-       default:
-               v4l2_err(sd, "invalid control id %d\n", qctrl->id);
-               return err;
-       }
-
-       v4l2_dbg(1, debug, sd, "Query Control:%s: Min - %d, Max - %d, Def - %d\n",
-                       qctrl->name, qctrl->minimum, qctrl->maximum,
-                       qctrl->default_value);
-
-       return err;
-}
-
-/**
- * tvp514x_g_ctrl() - V4L2 decoder interface handler for g_ctrl
- * @sd: pointer to standard V4L2 sub-device structure
- * @ctrl: pointer to v4l2_control structure
- *
- * If the requested control is supported, returns the control's current
- * value from the decoder. Otherwise, returns -EINVAL if the control is not
- * supported.
- */
-static int
-tvp514x_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
-{
-       struct tvp514x_decoder *decoder = to_decoder(sd);
-
-       if (ctrl == NULL)
-               return -EINVAL;
-
-       switch (ctrl->id) {
-       case V4L2_CID_BRIGHTNESS:
-               ctrl->value = decoder->tvp514x_regs[REG_BRIGHTNESS].val;
-               break;
-       case V4L2_CID_CONTRAST:
-               ctrl->value = decoder->tvp514x_regs[REG_CONTRAST].val;
-               break;
-       case V4L2_CID_SATURATION:
-               ctrl->value = decoder->tvp514x_regs[REG_SATURATION].val;
-               break;
-       case V4L2_CID_HUE:
-               ctrl->value = decoder->tvp514x_regs[REG_HUE].val;
-               if (ctrl->value == 0x7F)
-                       ctrl->value = 180;
-               else if (ctrl->value == 0x80)
-                       ctrl->value = -180;
-               else
-                       ctrl->value = 0;
-
-               break;
-       case V4L2_CID_AUTOGAIN:
-               ctrl->value = decoder->tvp514x_regs[REG_AFE_GAIN_CTRL].val;
-               if ((ctrl->value & 0x3) == 3)
-                       ctrl->value = 1;
-               else
-                       ctrl->value = 0;
-
-               break;
-       default:
-               v4l2_err(sd, "invalid control id %d\n", ctrl->id);
-               return -EINVAL;
-       }
-
-       v4l2_dbg(1, debug, sd, "Get Control: ID - %d - %d\n",
-                       ctrl->id, ctrl->value);
-       return 0;
-}
-
 /**
  * tvp514x_s_ctrl() - V4L2 decoder interface handler for s_ctrl
- * @sd: pointer to standard V4L2 sub-device structure
- * @ctrl: pointer to v4l2_control structure
+ * @ctrl: pointer to v4l2_ctrl structure
  *
  * If the requested control is supported, sets the control's current
  * value in HW. Otherwise, returns -EINVAL if the control is not supported.
  */
-static int
-tvp514x_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
+static int tvp514x_s_ctrl(struct v4l2_ctrl *ctrl)
 {
+       struct v4l2_subdev *sd = to_sd(ctrl);
        struct tvp514x_decoder *decoder = to_decoder(sd);
        int err = -EINVAL, value;
 
-       if (ctrl == NULL)
-               return err;
-
-       value = ctrl->value;
+       value = ctrl->val;
 
        switch (ctrl->id) {
        case V4L2_CID_BRIGHTNESS:
-               if (ctrl->value < 0 || ctrl->value > 255) {
-                       v4l2_err(sd, "invalid brightness setting %d\n",
-                                       ctrl->value);
-                       return -ERANGE;
-               }
-               err = tvp514x_write_reg(sd, REG_BRIGHTNESS,
-                               value);
-               if (err)
-                       return err;
-
-               decoder->tvp514x_regs[REG_BRIGHTNESS].val = value;
+               err = tvp514x_write_reg(sd, REG_BRIGHTNESS, value);
+               if (!err)
+                       decoder->tvp514x_regs[REG_BRIGHTNESS].val = value;
                break;
        case V4L2_CID_CONTRAST:
-               if (ctrl->value < 0 || ctrl->value > 255) {
-                       v4l2_err(sd, "invalid contrast setting %d\n",
-                                       ctrl->value);
-                       return -ERANGE;
-               }
                err = tvp514x_write_reg(sd, REG_CONTRAST, value);
-               if (err)
-                       return err;
-
-               decoder->tvp514x_regs[REG_CONTRAST].val = value;
+               if (!err)
+                       decoder->tvp514x_regs[REG_CONTRAST].val = value;
                break;
        case V4L2_CID_SATURATION:
-               if (ctrl->value < 0 || ctrl->value > 255) {
-                       v4l2_err(sd, "invalid saturation setting %d\n",
-                                       ctrl->value);
-                       return -ERANGE;
-               }
                err = tvp514x_write_reg(sd, REG_SATURATION, value);
-               if (err)
-                       return err;
-
-               decoder->tvp514x_regs[REG_SATURATION].val = value;
+               if (!err)
+                       decoder->tvp514x_regs[REG_SATURATION].val = value;
                break;
        case V4L2_CID_HUE:
                if (value == 180)
                        value = 0x7F;
                else if (value == -180)
                        value = 0x80;
-               else if (value == 0)
-                       value = 0;
-               else {
-                       v4l2_err(sd, "invalid hue setting %d\n", ctrl->value);
-                       return -ERANGE;
-               }
                err = tvp514x_write_reg(sd, REG_HUE, value);
-               if (err)
-                       return err;
-
-               decoder->tvp514x_regs[REG_HUE].val = value;
+               if (!err)
+                       decoder->tvp514x_regs[REG_HUE].val = value;
                break;
        case V4L2_CID_AUTOGAIN:
-               if (value == 1)
-                       value = 0x0F;
-               else if (value == 0)
-                       value = 0x0C;
-               else {
-                       v4l2_err(sd, "invalid auto gain setting %d\n",
-                                       ctrl->value);
-                       return -ERANGE;
-               }
-               err = tvp514x_write_reg(sd, REG_AFE_GAIN_CTRL, value);
-               if (err)
-                       return err;
-
-               decoder->tvp514x_regs[REG_AFE_GAIN_CTRL].val = value;
+               err = tvp514x_write_reg(sd, REG_AFE_GAIN_CTRL, value ? 0x0f : 0x0c);
+               if (!err)
+                       decoder->tvp514x_regs[REG_AFE_GAIN_CTRL].val = value;
                break;
-       default:
-               v4l2_err(sd, "invalid control id %d\n", ctrl->id);
-               return err;
        }
 
        v4l2_dbg(1, debug, sd, "Set Control: ID - %d - %d\n",
-                       ctrl->id, ctrl->value);
-
+                       ctrl->id, ctrl->val);
        return err;
 }
 
@@ -1104,10 +952,18 @@ static int tvp514x_s_stream(struct v4l2_subdev *sd, int enable)
        return err;
 }
 
-static const struct v4l2_subdev_core_ops tvp514x_core_ops = {
-       .queryctrl = tvp514x_queryctrl,
-       .g_ctrl = tvp514x_g_ctrl,
+static const struct v4l2_ctrl_ops tvp514x_ctrl_ops = {
        .s_ctrl = tvp514x_s_ctrl,
+};
+
+static const struct v4l2_subdev_core_ops tvp514x_core_ops = {
+       .g_ext_ctrls = v4l2_subdev_g_ext_ctrls,
+       .try_ext_ctrls = v4l2_subdev_try_ext_ctrls,
+       .s_ext_ctrls = v4l2_subdev_s_ext_ctrls,
+       .g_ctrl = v4l2_subdev_g_ctrl,
+       .s_ctrl = v4l2_subdev_s_ctrl,
+       .queryctrl = v4l2_subdev_queryctrl,
+       .querymenu = v4l2_subdev_querymenu,
        .s_std = tvp514x_s_std,
 };
 
@@ -1190,6 +1046,27 @@ tvp514x_probe(struct i2c_client *client, const struct i2c_device_id *id)
        sd = &decoder->sd;
        v4l2_i2c_subdev_init(sd, client, &tvp514x_ops);
 
+       v4l2_ctrl_handler_init(&decoder->hdl, 5);
+       v4l2_ctrl_new_std(&decoder->hdl, &tvp514x_ctrl_ops,
+               V4L2_CID_BRIGHTNESS, 0, 255, 1, 128);
+       v4l2_ctrl_new_std(&decoder->hdl, &tvp514x_ctrl_ops,
+               V4L2_CID_CONTRAST, 0, 255, 1, 128);
+       v4l2_ctrl_new_std(&decoder->hdl, &tvp514x_ctrl_ops,
+               V4L2_CID_SATURATION, 0, 255, 1, 128);
+       v4l2_ctrl_new_std(&decoder->hdl, &tvp514x_ctrl_ops,
+               V4L2_CID_HUE, -180, 180, 180, 0);
+       v4l2_ctrl_new_std(&decoder->hdl, &tvp514x_ctrl_ops,
+               V4L2_CID_AUTOGAIN, 0, 1, 1, 1);
+       sd->ctrl_handler = &decoder->hdl;
+       if (decoder->hdl.error) {
+               int err = decoder->hdl.error;
+
+               v4l2_ctrl_handler_free(&decoder->hdl);
+               kfree(decoder);
+               return err;
+       }
+       v4l2_ctrl_handler_setup(&decoder->hdl);
+
        v4l2_info(sd, "%s decoder driver registered !!\n", sd->name);
 
        return 0;
@@ -1209,6 +1086,7 @@ static int tvp514x_remove(struct i2c_client *client)
        struct tvp514x_decoder *decoder = to_decoder(sd);
 
        v4l2_device_unregister_subdev(sd);
+       v4l2_ctrl_handler_free(&decoder->hdl);
        kfree(decoder);
        return 0;
 }